If no internet destination is defined, a message appears. Before the Publish Tool can be used, a SADE instance has to be defined. This can be done after selecting "Window > Preferences" in the menu bar and "Sade Publisher" is chosen. A form allows you to define the instance via URL and to save a user name and the password. Once this has been done, Objects can be published by clicking "Publish to SADE" in the context menu of an Object. For more information, please see
http://www.bbaw.de/telota/projekte/digitale-editionen/sade
By default the username for the eXist-db is "admin" and no password is required.